Answer:
Yes they have and now they can,
1) Make laws.
2) Declare war.
3) Raise and provide public money and oversee its proper expenditure.
4) Impeach and try federal officers.
5) Approve presidential appointments.
6) Approve treaties negotiated by the executive branch.
7) Oversight and investigations.
Explanation:
Don't know what the Q was but this is something:-\
